Natural Ventilation Control
Phason
8
2013-08-26
If you are connecting the alarm system to a
network of controls and your system uses a
normally closed
connection (opens on alarm),
connect the system as shown in the normally
closed diagram.
Join the alarm relays in a continuous loop. The
NVC-2 alarm relays must be in series with each
other so any control can trigger the alarm system
when an alarm condition occurs.
Connecting the power source
Connect the incoming power (85 to 264 VAC, 50/60
Hz) as shown in the following diagram.
Finishing the installation
After you have finished connecting all equipment:
1.
Make sure all wires are properly connected to the correct terminals.
2.
Place the cover on the control.
3.
Switch on the power to the NVC-2; it should display
ŠŠŠŠ
for three seconds, the version (for
example,
vƒ00
) for three seconds, and then the temperature.
If the display does not light up, go back to step 1.
If the display shows an alarm message, or the LED for Alarm is flashing, press
Select
to
acknowledge the alarm. For a list of alarm messages and error codes, read
Alarm messages
on page 13.
4.
Test the equipment. For more information, read
Testing and maintaining the NVC-2
on page 15
5.
Fasten the cover to the base.
Before connecting the incoming
power, switch OFF the power at the
source.
Do not switch ON the power until
you have finished all wiring and
verified all equipment is properly
connected and free of obstructions.
CIRCUIT
PANEL
L1
L2/NEUTRAL
L N
AC LINE
OPEN
CONTROL
CONTROL
POWER
SUPPLY
Normally closed system (open on alarm)
